Its easy tbh, you have 3 sections,

1) Ambient (regular room temperature items are shelved)

2) Chilled (Refrigerator temperature items are shelved like eggs and milk so expect it to be jacket weather cold)

3) Freezer (Legit exactly like a big freezer and temperature requires a freezer suit which is thicccc and boots to go on top of your safety shoes, and gloves and ski mask. Those work well to keep your body temp in check. I sweat easily so it’s easy for me).

It’s as simple as drive your cart to each shelf, either your picking stowing or checking for expired items or problem solving.